From: "Bernd Brägelmann" <bernd@braegelmann.net>
To: dm-crypt@saout.de
Subject: Re: [dm-crypt] Incidentaly partitioned LUKS device - header lost?
Date: Sat, 2 Jul 2016 20:11:44 +0200 [thread overview]
Message-ID: <577803E0.1050901@braegelmann.net> (raw)
In-Reply-To: <20160702161456.GA24756@tansi.org>
Hi Arno,
here the requested dump. Looks like the Master Boot Record with "55 aa"
boot signature. The byterange of the luks mastersalt is basically empty.
So all fucked up - I guess.
BTW: What is your guess: Will my grandchildren be able to crack a
256-aes-xts file system. What is your guess? Should I long-term store
the hard discs?
Cheers,
Bernd
braegel1 ~ # head -c 1k /dev/md2 | hd
00000000 fa b8 00 10 8e d0 bc 00 b0 b8 00 00 8e d8 8e c0
|................|
00000010 fb be 00 7c bf 00 06 b9 00 02 f3 a4 ea 21 06 00
|...|.........!..|
00000020 00 be be 07 38 04 75 0b 83 c6 10 81 fe fe 07 75
|....8.u........u|
00000030 f3 eb 16 b4 02 b0 01 bb 00 7c b2 80 8a 74 01 8b
|.........|...t..|
00000040 4c 02 cd 13 ea 00 7c 00 00 eb fe 00 00 00 00 00
|L.....|.........|
00000050 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
|................|
*
000001b0 00 00 00 00 00 00 00 00 70 57 07 00 00 00 00 00
|........pW......|
000001c0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
|................|
*
000001f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 55 aa
|..............U.|
00000200 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
|................|
*
00000400
--
Bernd Brägelmann FA für Radiologie
Robert-Koch-Str. 42 - 28277 Bremen
fon: +49 15141457796 PGP: BCA853F8
On 07/02/2016 06:14 PM, Arno Wagner wrote:
> Hi Bernd,
>
> On Sat, Jul 02, 2016 at 12:42:27 CEST, Bernd Brägelmann wrote:
>> Hi Arno,
>>
>> thanks for answering. I created the partition table within /dev/md2 and
>> the raid is still working.
>
> Ok, so we ignore the RAID.
>
>> My current last hope is that the salt might be in a redundant part of
>> the raid array.
>
> Those will have gotten synced immediately, RAID inconsistencies
> live only for as long as they are in the write queue. No hope
> there.
>
> Ok, the LUKS superblock (or what is left of it) will be at
> the start of /dev/md2. Can you post the following (will
> not compromise your datta, that is protected by the
> passphrase(s)):
>
> head -c 1k /dev/md2 | hd
>
> This allows a manual look of what is left of the LUKS header.
>
> Regards,
> Arno
>
next prev parent reply other threads:[~2016-07-02 18:11 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-02 6:33 [dm-crypt] Incidentaly partitioned LUKS device - header lost? Bernd Brägelmann
2016-07-02 10:20 ` Arno Wagner
2016-07-02 10:25 ` Arno Wagner
2016-07-02 10:42 ` Bernd Brägelmann
2016-07-02 16:14 ` Arno Wagner
2016-07-02 18:11 ` Bernd Brägelmann [this message]
2016-07-02 18:55 ` Arno Wagner
2016-07-02 20:06 ` Bernd Brägelmann
2016-07-02 21:53 ` Arno Wagner
2016-07-03 20:40 ` Michael Kjörling
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